PYROELECTRIC BODY, PYROELECTRIC ELEMENT, MANUFACTURING METHOD OF PYROELECTRIC ELEMENT, THERMOELECTRIC CONVERSION ELEMENT, MANUFACTURING METHOD OF THERMOELECTRIC CONVERSION ELEMENT, THERMAL TYPE PHOTODETECTOR, MANUFACTURING METHOD OF THERMAL TYPE PHOTODETECTOR, AND ELECTRONIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a pyroelectric body of which the pyroelectric coefficient (sensitivity) is high.SOLUTION: The pyroelectric body includes an oxide containing iron, manganese, bismuth and neodymium. The oxide has a perovskite crystal structure and a ratio of an atomic number of neodymium with respect to a total sum of atomic numbers of A-site elements is 19.0 atom% or more and 23.0 atom% or less. It is preferable for the oxide that a ratio of an atomic number of manganese with respect to a total sum of atomic numbers of B-site elements is 1.0 atom% or more and 2.0 atom% or less. Further, it is preferable that a ratio of an atomic number of titanium with respect to the total sum of the atomic numbers of the B-site elements is 0 atom% or more and 4.0 atom% or less. It is preferable that the pyroelectric body is used at an environmental temperature of -100°C or lower.SELECTED DRAWING: Figure 2